* {
    margin: 0;
    padding: 0;
    list-style: none;
    text-decoration: none;
    
}
li {
    font-size: 0;
}

/* 头部 */
header {
    margin: 0 auto;
    width: 1000px;
}
/* 顶部内容 */
header .head-top {
    position: relative;
    width: 1000px;
    height: 140px;
    background-color: #00b7ee;
}

/* 导航栏 */
header .head-top nav {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 1000px;
    height: 116px;
    background-color: #fff;

    padding: 37px 76px 15px 76px;
    box-sizing: border-box;
} 

header .head-top nav>img,
header .head-top nav>ul,
header .head-top nav>div {
    float: left;

}

header .head-top nav>img {
    margin-right: 61px;
}

header .head-top nav>ul {
    width: 460px;
}

header .head-top nav>ul>li {
    position: relative;
    display:inline-block;
    margin: 35px 8px 0;
}

header .head-top nav>ul>li:first-of-type::after {
    content: "";
    position: absolute;
    left: 50%;
    margin-left: -7px;
    bottom: -7px;
    width: 14px;
    height: 2px;
    background-color: #000;
}

header .head-top nav>ul>li>a {
    font-size: 14px;
    font-weight: bolder;
    color: #000;
}

header .head-top nav .search-box {
    width: 205px;
    height: 30px;
    border: 1px solid #000;
    box-sizing: border-box;
    margin-top: 29px;
}

header .head-top nav .search-box>input {
    width: 158px;
    height: 22px;
    border: none;
    vertical-align: top;
    margin-top: 2px; 
    margin-left: 2px;
    outline: none;

}

header .head-top nav .search-box>img {
    width: 27px;
    margin: 3px 7px 3px 3px;
}

/* 顶部轮播图 */
header .head-carousel {
    overflow: hidden;
    position: relative;

}

header .head-carousel>ul {
    width: 3000px;
}

header .head-carousel>ul>li {
   float: left;
}

header .head-carousel>.dots {
    position: absolute;
    bottom: 10px;
    /* width: 50%; */
    margin-left: 460px;
}

header .head-carousel .dots span {
    display:inline-block;
    margin: 0 6px;
    width: 15px;
    height: 15px;
    border-radius: 100%;
    background-color: #395674;
}

header .head-carousel .dots>.dots_active {
    background-color: rgba(0, 0, 0, .5);
    
}

header .head-carousel .dots span:hover {
    background-color: rgba(0, 0, 0, .5);
    cursor: pointer;
}

/* 关于我们 */
main {
    margin: 0 auto;
    width: 1000px;
    position: relative;
}
/* 灰色背景 */
main .bg {
    
    background-color: #fafafa;
    width: 1000px;
    height: 483px;
}

main .bg .title1 {
    position:absolute;
    top: 5px;
    left: 426px;
    text-align: center;
    width: 141px;
    border-color: #6db6ff; 
}
.title_cn {
    font-size: 24px;
}
.title_en {
    font-size: 16px;
}


main .bg .box .box_1 {
    position: absolute;
    top: 83px;
    left: 51px;
    width: 267px;  
    height: 321px; 
    background-color: #f2f2f2;
    line-height: 27px;
}

.vector {
    margin: 18px 70px 0;
    
}
.vector2 {
    margin: 18px 100px 0;
    
}


.fon16 {
    font-size: 16px;
    text-align: center;
}
.fon12 {
    font-size: 12px;
    letter-spacing: 1px;
    margin: 0 18px;
}
main .bg .box .box_2 {
    position: absolute;
    top: 83px;
    left: 338px;
    width: 324px;  
    height: 321px; 
    background-color: #f2f2f2;
    line-height: 27px;
}
main .bg .box .box_3 {
    position: absolute;
    top: 83px;
    right: 51px;
    width: 267px;  
    height: 321px; 
    background-color: #f2f2f2;
    line-height: 27px;
} 

main .bg .title2 {
    position:absolute;
    top: 424px;
    left: 426px;
    text-align: center;
    width: 141px;
    border-color: #6db6ff; 
}

main .box_B .box_1 {
    position: absolute;
    top: 504px;
    left: 51px;
    width: 297px;  
    height: 308px; 
    letter-spacing: 3px;
}
main .box_B [class^="project"] {
    margin-bottom: 15px;
   
}    
main .box_B .explain {
    text-align: center;
   
}    
main .box_B [class^="click"] {
    
    
    background-color: #6db6ff;
    color: #fff;
    font-size: 16px;
    letter-spacing: 3px;
    font-weight: 800;
    padding: 6px 31px;
}

main .box_B .box_1 .click1 {
    position: absolute;
    top: 257px;
    left: 75px;
}

main .box_B .box_2 {
    position: absolute;
    top: 504px;
    left: 353px;
    width: 297px;  
    height: 308px; 
    letter-spacing: 3px;
}
main .box_B .box_2 .click2 {
    position: absolute;
    top: 257px;
    left: 75px;
}

main .box_B .box_3 {
    position: absolute;
    top: 504px;
    right: 48px;
    width: 297px;  
    height: 308px; 
    letter-spacing: 3px;
}
main .box_B .box_3 .click3 {
    position: absolute;
    top: 257px;
    right:75px;
}

.box_B-2 {
    position: absolute;
    top: 810px;
    left: 51px;
    height: 334px;
}
.fl {
    float: left;
}

.fl a {
    display: block;
    margin: 20px 75px;  
}
.box_5,.box_6 {
    margin-left: 7px;
}

/* 友情链接 */
main .box_C {
    position: absolute;
    top:1144px;
    left: 51px;  
}
.title3 {
    color: #fff;
}
/* 图片底部背景 */
main .box_C .bg {
    content: "";
    width: 900px;
    height: 305px;
    background-color: #313131;
    position: absolute;
}
/* 图片透明度 */
main .box_C .up {
    opacity: 28%;
}

main .box_C .title3 {
    position:absolute;
    top: 21px;
    left: 377px;
    text-align: center;
    width: 141px;
    border-color: #6db6ff; 
}

main .box_C .roll .bg2 {
    width: 37px;
    height: 69px;
    background-color: #000;
    opacity: 28%;  
    margin:4px 0 8px 9px; 
}

main .box_C .roll {
    position: absolute;
    top:113px;
}
main .box_C .roll img:nth-of-type(2) {
    margin-left: 35px;
}
main .box_C .roll img:nth-of-type(3) {
    margin-left: 22px;
}
main .box_C .roll img:nth-of-type(4) {
    margin-left: 22px;
}
main .box_C .roll div:last-of-type {
    margin-left: 41px;
}
main .box_C .roll .left {
    position: absolute;
    top: 25px;
    left: 16px;
}

main .box_C .roll .right {
    position: absolute;
    top: 25px;
    right: 10px;
}

footer {
    margin: 0 auto;
    width: 1000px;
}
footer .foot {
    position: relative;
    width: 1000px;
    height: 238px;
    top: 995px;  
    border-top: 1px solid #eaedf0; 
}


footer .foot .list dl:first-child {
    margin: 25px 0 24px 51px;
}
footer .foot .list dl:nth-of-type(2) {
    margin: 25px 0 24px 54px;
}
footer .foot .list dl:nth-of-type(3) {
    margin: 25px 0 24px 109px;
}
footer .foot .list dl:last-child {
    margin: 25px 0 24px 53px;
}
dt {
    font-size: 16px;
    line-height: 60px;
    font-weight: 900;
    letter-spacing: 3px;

}
dd {
    font-size: 12px;
    line-height: 2em;
    letter-spacing: 2px;
}
.font16 {
    font-size: 16px;font-weight: bolder;


}
.font10 {
    font-size: 10px;
}
footer .foot .tab .fl{
    margin: 46px 0 0 37px;

} 

.footer-bottom {
    background-color: #6db6ff;
    position: absolute;
    top: 2195px;
    padding: 43px 350px 15px;
    font-size: 12px;
}












